/**
 * (C)Leanest CSS spinner ever
 * From http://lea.verou.me/2013/11/cleanest-css-spinner-ever/
 *
 * Usage: <div class="small progress"><div>Loading…</div></div>

<div class="progress"><div>Loading…</div></div>

<div class="large progress"><div>Loading…</div></div>
 */

@keyframes spin {
  to { transform: rotate(1turn); }
}

.progress {
  position: relative;
//  display: inline-block;
  width: 5em;
  height: 5em;
  margin: 0 .5em;
  font-size: 12px;
  text-indent: 999em;
  overflow: hidden;
  animation: spin 1s infinite steps(8);
}

.small.progress {
  font-size: 6px;
}

.large.progress {
  font-size: 24px;
}

.progress:before,
.progress:after,
.progress > div:before,
.progress > div:after {
  content: '';
  position: absolute;
  top: 0;
  left: 2.25em; /* (container width - part width)/2  */
  width: .5em;
  height: 1.5em;
  border-radius: .2em;
  background: #eee;
  box-shadow: 0 3.5em #eee; /* container height - part height */
  transform-origin: 50% 2.5em; /* container height / 2 */
}

.progress:before {
  background: #555;
}

.progress:after {
  transform: rotate(-45deg);
  background: #777;
}

.progress > div:before {
  transform: rotate(-90deg);
  background: light_gray_color;
}

.progress > div:after {
  transform: rotate(-135deg);
  background: #bbb;
}
